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26
S
PECIFICATIONS
MODEL ----------------------------------------------------- SRM-261, SRM-261S
Length w/o cutter head ----------------------------------- 1795 mm (70.7 in.)
Width -------------------------------------------------------- 250 mm (9.84 in.)
Height ------------------------------------------------------- 250 mm (9.84 in.)
Weight (dry) w/Cutter Head (SRM-261) ---------------- 5.23 kg (11.5 lb.)
Weight (dry) w/Cutter Head (SRM-261S) -------------- 5.03 kg (11.1 lb.)
Engine Type ------------------------------------------------ Air cooled, two-stroke, single cylinder gasoline engine
Bore ---------------------------------------------------------- 34.0 mm (1.34 in.)
Stroke -------------------------------------------------------- 28.0 mm (1.10 in.)
Displacement ----------------------------------------------- 25.4 cc (1.55 cu. in.)
Exhaust ------------------------------------------------------ Spark Arrestor Muffler w/catalyst
Carburetor -------------------------------------------------- Walbro w/purge pump
Ignition System -------------------------------------------- Flywheel magneto, capacitor discharge
Spark Plug -------------------------------------------------- NGK BPM-8Y (Gap 0.65 mm (0.026 in.)
Fuel ---------------------------------------------------------- Mixed (Gasoline and Two-stroke Oil)
Fuel/Oil Ratio ----------------------------------------------- 50:1 two-stroke air cooled engine oil
Gasoline ----------------------------------------------------- 89 Octane unleaded. DO NOT use fuel containing methyl alcohol,
Oil ------------------------------------------------------------ Power Blend
Fuel Tank Capacity ---------------------------------------- 0.58 lit. (19.6 US fl. oz.)
Starter System ---------------------------------------------- Automatic Rewind Starter
Clutch ------------------------------------------------------- Centrifugal Type
Vibration Isolated System --------------------------------- Rubber cushion on engine mount (heavy duty). Rubber grip on
Operating Rod ---------------------------------------------- 25.0 mm aluminum Tube
Drive Shaft (SRM-261) ------------------------------------ 6.35 mm (1/4 in.) flexible shaft
Drive Shaft (SRM-261S) ----------------------------------- 7.0 mm spline steel shaft
Gear Case Ratio -------------------------------------------- 1.4:1 Reduction
Rotating Direction ----------------------------------------- Counter Clockwise; viewed from top
Cutter Head ------------------------------------------------- Nylon line head (2-line) with .095 Crossfire™ Line capacity 6m (20 ft.)
Handle* ----------------------------------------------------- Front - Loop and Right Rear Handle w/rubber grips
Shoulder Harness ------------------------------------------ Optional
Idle Speed --------------------------------------------------- 2,750 - 3,250 RPM
Wide Open Throttle Speed (W.O.T.)
with Nylon Line Head ------------------------------------- 8,500 - 10,500 RPM
Wide Open Throttle Speed (W.O.T.) with Blade ------ 9,500 - 11,000 RPM
more than 10% ethyl alcohol or 15% MTBE.
TM
Premium Universal 2-Stroke Oil
front handle
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